What Word is Next?

Group
These brain teasers rely on your ability to recognize groups of common attributes. For each of these puzzles you'll need to figure out why the words or letters are grouped as they are. Sometimes you will be asked to pick the odd-one-out or to place a new word into the correct group.

Based on the pairings that you see below, what word is next, replacing the ? mark?

rotate - tare
refits - firs
sneaky - easy
throne - rote
tepees - ?

Answer

The answer is pets.

The second word in each pair is created by taking the middle two letters of the first word and then adding the first letter of the first word and the last letter of the first word.